No 7/10 is equivalent to 70% 07/10 is equivalent to 7%
Answer:
18 L
Step-by-step explanation:
Given : she must mix a solution of 67% herbicide with a solution of 46% herbicide to form 42 liters of a 55% solution.
To Find: How much of the 67% solution must she use?
Let x = amount of 67% solution needed
Then 42-x=amount of 46% solution needed
Now we know that the pure herbicide in the 67% solution
So, pure herbicide = (0.67x)
The amount of pure herbicide in the 46% solution (0.46(42-x))
Now 42 liters of a 55% solution = (0.46(42-x))
So,
Amount of 67% solution + Amount of 46% solution = 42 liters of a 55% solution
⇒0.67x+0.46(42-x)=0.55*42
⇒0.67x+19.32-0.46x=23.1
⇒0.21x=3.78
⇒
⇒x = 18 liters
Hence she use 18 liters of the 67% solution
<em>15.05 ÷ 7 = $2.15 per gallon</em>
<em>--</em>
<em>2.15 x 4 = $8.60</em>
<em>--</em>
<em>jamal can buy 4 gallons of gas</em>
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Answer:
Yes
Step-by-step explanation:
The decimal points moves to the right at a constant pace.
0.006 -> 0.06 -> 0.6 -> 6
In other words, we are just multiplying each one by 10 to get the next value.
Best of Luck!
Answer:
if we simplify then the answer is 7k
Step-by-step explanation:
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